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Series GSE56762 Query DataSets for GSE56762
Status Public on Jun 02, 2014
Title Histone variant H3.3 is an essential maternal factor for oocyte reprogramming
Organism Mus musculus
Experiment type Expression profiling by high throughput sequencing
Summary Mature oocyte cytoplasm can reprogram somatic cell nuclei to the pluripotent state through a series of sequential events including protein exchange between the donor nucleus and ooplasm, chromatin remodeling, and pluripotency gene reactivation. Maternal factors that are responsible for this reprogramming process remain largely unidentified. Here, we demonstrate that knockdown of histone variant H3.3 in mouse oocytes results in compromised reprogramming and down-regulation of key pluripotency genes; and this compromised reprogramming both for developmental potentials and transcription of pluripotency genes can be rescued by injecting exogenous H3.3 mRNA, but not H3.2 mRNA into oocytes in somatic cell nuclear transfer (SCNT) embryos. We show that maternal H3.3, and not H3.3 in the donor nucleus, is essential for successful reprogramming of somatic cell nucleus into the pluripotent state. Furthermore, H3.3 is involved in this reprogramming process by remodeling the donor nuclear chromatin through replacement of donor nucleus-derived H3 with de novo synthesized maternal H3.3 protein. Our study shows that H3.3 is a crucial maternal factor for oocyte reprogramming and provides a practical model to directly dissect the oocyte for its reprogramming capacity.
Overall design Transcriptome sequencing of 4-cell NT embryos, Luciferase 4-cell SCNT embryos, 4-cell NT embryos_H3.3KD, 4-cell NT embryos_H3.3KD+H3.3mRNA, H3.3 KD + H3.2 mRNA SCNT embryos
Contributor(s) Wen D, Banaszynski LA, Elemento O, Allis CD, Rafii S
Citation(s) 24799717
Submission date Apr 14, 2014
Last update date May 15, 2019
Contact name Olivier Elemento
Street address 1305 York Avenue
City New York
State/province NY
ZIP/Postal code 10021
Country USA
Platforms (1)
GPL17021 Illumina HiSeq 2500 (Mus musculus)
Samples (5)
GSM1368309 4-cell NT embryos
GSM1368310 Luciferase 4-cell SCNT embryos
GSM1368311 4-cell NT embryos_H3.3KD
BioProject PRJNA244497
SRA SRP041152

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Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE56762_RAW.tar 540.0 Kb (http)(custom) TAR (of TXT)
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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